ID 原文 译文
723 目前小样本条件下高分辨距离像雷达目标识别算法存在识别率较低、识别率稳定度较差等问题, At present, the existing high-resolution range profile radar target recognition algorithm with limited trainingdata still has several drawbacks (e.g., low recognition accuracy and poor recognition stability).
724 对此,本文提出了基于数据增强和加权辅助分类生成对抗网络(Weighted Auxiliary Classifier Generative Adversarial Networks,WACGAN)的雷达目标识别算法。 To this end, an efficient ra-dar target recognition algorithm is developed in this paper, which is based on data augmentation and Weighted AuxiliaryClassifier Generative Adversarial Networks (WACGAN).
725 该算法首先根据雷达目标散射特性,通过时间镜像数据增强方法扩充数据集, Specifically, we expand data set by using the data augmentationmethod based on time mirroring, and the radar target scattering characteristics is considered.
726 然后将扩充数据集输入 WACGAN,通过自动选择高质量的生成样本,使判别器在标签样本监督学习的基础上得到进一步优化, After that, the WACGAN withexpanded data set is used to automatically select high-quality generated samples and further optimize the discriminator, which has been improved through the supervised learning.
727 最后直接利用判别器实现对雷达目标的有效识别。 Then, the optimized discriminator is used to recognize radar target.
728 仿真实验结果表明,本文算法在不增加识别时间的基础上,有效提高了小样本条件下对雷达目标的识别率和识别稳定度。 Final-ly, several numerical experiments have been carried out to demonstrate that, under the condition of limited training data, the proposed algorithm possesses higher recognition accuracy and better recognition stability without increasing recognition time.
729 在高速移动通信系统中,收发双方往往面临较大多普勒频移和有限导频开销两个问题,从而会严重影响传统载波同步模式(Traditional Carrier Synchronization Pattern,TCSP)的整体性能。 Considering high-speed mobile communications, transceivers always work subject to the large Doppler shiftand limited pilot overhead, which severely influences the overall performance of traditional carrier synchronization pattern(TCSP).
730 为此,本文提出了一种强鲁棒性的载波参数估计解耦合技术(Carrier Parameter Rstimation Decoupling Technique ,CPEDT),并应用到传统载波同步模式(CPEDT-TCSP)中。 Thus, a strong robust carrier parameter estimation decoupling technique (CPEDT)is proposed, followed by its appli-cation to the TCSP (yielding the CPEDT-TCSP).
731 首先在接收端任取一段导频信号进行解调操作, First, the pilot signals with certain length are selected at receiver to performthe demodulation operation,
732 然后对解调信号进行有效延迟 长度为 α 的相关运算, and then the correlation operation with an effective delay length α is performed by the demodula-tion signals.